Anionic polymeric flocculant combinations for settling phosphate

Details Anionic polymeric flocculant combinations for settling phosphate Anionic polymeric flocculant combinations for settling phosphate

1979-09-11

1981-02-17

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

209 5, 210705, 210728, C02F 156

Patent

active

042513634

ABSTRACT:
Phosphate slimes are effectively settled by the sequential addition of effective amounts of a low molecular weight acrylamide: acrylic acid copolymer of high anionicity and a high molecular weight acrylamide: acrylic acid copolymer of low anionicity.

REFERENCES:
patent: 3418237 (1968-12-01), Booth et al.
patent: 3493499 (1970-02-01), Zeitoun et al.
patent: 3578586 (1971-05-01), Gal et al.
patent: 3680698 (1972-08-01), Liu et al.
patent: 3717574 (1973-02-01), Werneke
patent: 3723310 (1973-03-01), Lang et al.

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